SP813LCN-L Equivalent & Substitute Parts

Part Overview

The SP813LCN-L is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for reset and power-on reset applications in 8-SOIC surface mount packaging. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain compatibility across voltage threshold monitoring, reset polarity, timeout specifications, and package form factor to ensure direct replacement capability in existing designs.

Substiute Parts

SP813LCN-L

MaxLinear, Inc.In Stock: 5031SP813LCN-L Datasheet

Current PartRFQ

STM813LM6F

STMicroelectronicsIn Stock: 12745STM813LM6F Datasheet

DirectRFQ

MAX813LCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3108MAX813LCSA+ Datasheet

MFR RecommendedRFQ

MAX813LCSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1166MAX813LCSA+T Datasheet

MFR RecommendedRFQ

MAX813LESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 5406MAX813LESA+ Datasheet

MFR RecommendedRFQ

MAX813LESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 17813MAX813LESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP813LCN-L is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Single-channel voltage monitoring architecture
• 4.65V voltage threshold (±tolerance as specified by manufacturer)
• Active High reset polarity
• 140ms minimum reset timeout
• 8-SOIC package form factor with 0.154" (3.90mm) width
• Surface mount technology

Acceptable Variations:

• Output stage configuration (open-drain vs. push-pull/totem pole output)
• Operating temperature range extension (wider ranges are acceptable)
• Packaging format (tube, cut tape, or reel configurations)
• RoHS compliance version (ROHS3 acceptable for RoHS Compliant requirement)

The substitute parts identified below satisfy all mandatory criteria while offering extended temperature ranges and active product status, ensuring long-term design support and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Analog Devices Inc./Maxim Integrated MAX813 Series):

The MAX813LCSA+T and MAX813LESA+T variants are recommended as primary substitutes due to active product status, ROHS3 compliance, and extended temperature range support (-40°C ~ 85°C for LESA variants). These parts maintain identical voltage threshold (4.65V) and reset timeout specifications while offering push-pull output configuration. The LESA variants provide superior thermal operating range for applications requiring extended temperature performance.

Secondary Substitute (STMicroelectronics STM813LM6F):

The STM813LM6F from STMicroelectronics provides an alternative source with active product status and ROHS3 compliance. This part operates across -40°C ~ 85°C and maintains the 140ms reset timeout. The voltage threshold is specified at 4.63V, representing a 0.02V deviation from the SP813LCN-L specification. This minor threshold variance is within typical supervisor IC tolerance bands and does not preclude functional equivalence.

Compliance Considerations:

All substitute parts maintain MSL Level 1 (Unlimited) moisture sensitivity classification and EAR99 export control status, ensuring compatibility with existing supply chain and regulatory requirements. ROHS3 compliance of substitute parts exceeds the original RoHS Compliant specification, providing enhanced environmental compliance.

Frequently Asked Questions (FAQ)

Q: Can MAX813LCSA+ be used as a direct replacement for SP813LCN-L?

A: Yes. The MAX813LCSA+ maintains identical voltage threshold (4.65V), reset polarity (Active High), reset timeout (140ms minimum), and 8-SOIC package specifications. The primary difference is packaging format (tube vs. unspecified original packaging) and extended RoHS compliance classification (ROHS3). Operating temperature range matches the original specification (0°C ~ 70°C).

Q: What is the difference between MAX813LCSA+T and MAX813LCSA+?

A: Both parts are electrically identical with matching voltage thresholds, reset specifications, and operating temperature ranges (0°C ~ 70°C). The primary distinction is packaging format: MAX813LCSA+T is supplied in cut tape (CT) and Digi-Reel format, while MAX813LCSA+ is supplied in tube packaging. Selection depends on assembly process requirements and tape reel compatibility.

Q: Why do the LESA variants have a wider temperature range?

A: The MAX813LESA+ and MAX813LESA+T variants are rated for -40°C ~ 85°C operation, compared to 0°C ~ 70°C for LCSA variants. This represents a different product grade within the MAX813 family, offering extended low-temperature and high-temperature performance. Both grades maintain identical voltage threshold and reset timeout specifications, making LESA variants suitable for applications requiring broader thermal operating conditions.

Q: Is the STM813LM6F voltage threshold difference (4.63V vs. 4.65V) significant?

A: The 0.02V threshold variance between STM813LM6F (4.63V) and SP813LCN-L (4.65V) falls within standard supervisor IC tolerance specifications. This minor deviation does not affect functional equivalence for reset and power-on reset applications. Selection of STM813LM6F is appropriate when supply chain or cost considerations favor STMicroelectronics sourcing.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, which exceeds the original SP813LCN-L RoHS Compliant status. ROHS3 compliance ensures compatibility with current environmental regulations and supply chain requirements.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: tube packaging (MAX813LCSA+, MAX813LESA+), cut tape and Digi-Reel format (MAX813LCSA+T, MAX813LESA+T, STM813LM6F). Selection depends on assembly process requirements, tape reel compatibility, and quantity requirements.